软弱土路堤的玻璃纤维加筋土加固技术

发布时间：2018-04-07 18:04

  本文选题：玻璃纤维加筋土　切入点：软弱土　出处：《地下空间与工程学报》2014年S2期

【摘要】：玻璃纤维加筋土加固软弱土路堤是一种有前途的技术。根据准黏聚力原理,推导玻璃纤维加筋土路堤边坡稳定安全系数公式,分析玻璃纤维参数和边坡高度等因素对加固路堤稳定性的影响规律,确定玻璃纤维加筋土加固路堤主要参数。研究表明,玻璃纤维加筋土边坡稳定安全系数随着纤维掺入量、纤维长度的增大而增大,安全系数与纤维参数呈非线性关系,加固软弱土路堤的玻璃纤维的最优掺入量为1‰和最优长度为5 cm,安全系数与边坡高度呈非线性地负增长关系。采用多元非线性回归方法分析不高于8 m的全厚度加固路堤稳定安全系数,建立考虑多因素影响的安全系数经验公式。计算多个工况加固路堤的稳定性,其结果与采用极限平衡方法的结果基本一致。
[Abstract]:Reinforcing soft soil embankment with glass fiber reinforced soil is a promising technique.According to the principle of quasi-cohesion, the formula of stability safety factor of glass fiber reinforced earth embankment slope is deduced, and the influence of glass fiber parameters and slope height on the stability of reinforced embankment is analyzed.The main parameters of reinforcing embankment with glass fiber reinforced soil are determined.The results show that the safety factor of glass fiber reinforced soil slope increases with the increase of fiber content and fiber length, and the safety factor is nonlinear with fiber parameters.The optimum incorporation of glass fiber is 1 鈥，

本文编号：1720274